Reconstructing sea-level changes during the last deglaciation provides a way of understanding the ice dynamics that can perturb large continental ice sheets. The resolution of the few sea-level records covering the critical time interval between 14,000 and 9,000 calendar years before the present is still insufficient to draw conclusions about sea-level changes associated with the Younger Dryas ...

[1] Surface roughness, defined as the standard deviation of small-scale elevation fluctuations from the linear trend over 0.5 km, can be estimated from high-resolution airborne laser altimetry. Here we present results for the northern half of the Greenland Ice Sheet using laser data collected in May 1995. Roughness is smallest in the central region straddling the ice divide, increases in amplit...

[1] The seasonality of moisture sources for precipitation in Antarctica is studied with a Lagrangian moisture source diagnostic. Moisture origin for precipitation in Antarctica has strongly asymmetric properties, which are related to the Antarctic topography, seasonal sea ice coverage, and the land/ocean contrasts in the mid-latitudes of the southern hemisphere. The highest altitudes of the Eas...

This study investigates the δ O of pore 18 waters from Sites 1003-1007 collected during Leg 166 of the Ocean Drilling Program which drilled sites along the western margin of Great Bahama Bank. These data generally show a positive correlation between δ O and the 18 concentration of chloride with the exception of Site 1006 which exhibits non-linear behavior with respect to chloride. However, the ...

Bien Hoa airbase is a known dioxin-contaminated hotspot in Vietnam. The contamination occurred during the Vietnam War at the site where dioxins were transported, stored, sprayed, and spilled in the area. Dioxins, which are cancer inducing substances, may transfer from the soil to food crops and finally to human beings living around the area. Many surveys of dioxins in soil, water, organisms, an...

[1] Ice cores drilled from glaciers around the world generally contain horizons with elevated levels of beta radioactivity including Cl and H associated with atmospheric thermonuclear bomb testing in the 1950s and 1960s. Ice cores collected in 2006 from Naimona’nyi Glacier in the Himalaya (Tibet) lack these distinctive marker horizons suggesting no net accumulation of mass (ice) since at least ...

Recent resource assessment studies of eastern Kentucky oil shales have establlshed that this resource is a potential economic synthetic fuel feedstock (1). Extensive geochemical characterization of this resource has been carr ied out by the Institute for Mining and Mlnerals Research (University of Kentucky) with support f rom the Commonwealth of Kentucky Energy Cabinet, the U. S. Department of ...

Lack of reliable long-term precipitation record from northern Tibetan Plateau has constrained the understanding of precipitation variation in this region. An ice core drilled from the Puruogangri Ice Field on central Tibetan Plateau in the year 2000 helped reveal the precipitation variations since AD 1600. Analysis of the annual accumulation 5 data presented precipitation changes from AD 1600, ...